What do you understand by downcasting?

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Do I need to install jre if I have jdk?

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Name primitive java types.

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Which class is the superclass of every class?

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What is the difference between Logical Parallelism and Physical Parallelism?

0 Answers   HCL,

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public class Dog { private int weight; public int getweight(){ return weight; } public void SetWeight(int newWeight){ if (newWeight > 0){ weight = newWeight; } } } public class TestDog { public static void main(String[] args) { Dog d = new Dog(); System.out.println("Dog d's weight is " + d.getWeight()); d.setWeight(42); System.out.println("Dog d's weight is " + d.getWeight()); d.setweight(-42); System.out.println("Dog d's weight is " + d.getWeight()); } } class dog is compiled but there is an error in class TestDog when compiled and the error is with dot notations. I want to kmow why there is error in testdog class when compiled.

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What is interceptors in java?

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Are the actual permissions for the application defined at run-time or compile-time? : java security

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What is gwt in java?

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What is type_scroll_insensitive in java?

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how we can export all the contacts and messages from nokia mobile to other mobile or pc? (pls answer quickly)

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Which is better openjdk or oracle jdk?

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